BARCELONA (Reuters) - Spain mounted a sweeping anti-terror operation on Friday after a suspected Islamist militant drove a van into crowds in Barcelona, killing 13 people before fleeing, in what police suspect was one of multiple planned attacks.

WASHINGTON (Reuters) - The United States and Japan will step up their defense cooperation to deal with the threat from nuclear-armed North Korea as tensions in East Asia remain high, officials from the two allies said on Thursday.

CARACAS (Reuters) - Venezuela will hunt down and jail leaders of violent protests that have rocked the country since April, its new top prosecutor said on Thursday, a day before a hate crimes law was expected to be approved despite fears that it will be used to crush dissent.